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115 lines
3.5 KiB
Markdown
115 lines
3.5 KiB
Markdown
| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-P4 | ESP32-S2 | ESP32-S3 |
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| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- | -------- |
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# HTTP Request Example
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(See the README.md file in the upper level 'examples' directory for more information about examples.)
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Uses a POSIX socket to make a very simple HTTP request.
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## How to use example
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Before project configuration and build, be sure to set the correct chip target using `idf.py set-target <chip_name>`.
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### Hardware Required
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* A development board with ESP32/ESP32-S2/ESP32-C3 SoC (e.g., ESP32-DevKitC, ESP-WROVER-KIT, etc.)
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* A USB cable for power supply and programming
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### Configure the project
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```
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idf.py menuconfig
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```
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Open the project configuration menu (`idf.py menuconfig`) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
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### Build and Flash
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Build the project and flash it to the board, then run monitor tool to view serial output:
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```
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idf.py -p PORT flash monitor
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```
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(Replace PORT with the name of the serial port to use.)
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(To exit the serial monitor, type ``Ctrl-]``.)
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See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
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## Example Output
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```
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I (10557) example_connect: - IPv4 address: 192.168.194.219
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I (10557) example_connect: - IPv6 address: fe80:0000:0000:0000:266f:28ff:fe80:2c74, type: ESP_IP6_ADDR_IS_LINK_LOCAL
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W (10577) wifi:<ba-add>idx:0 (ifx:0, ee:6d:19:60:f6:0e), tid:0, ssn:3, winSize:64
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I (10587) example: DNS lookup succeeded. IP=93.184.216.34
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I (10587) example: ... allocated socket
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I (10917) example: ... connected
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I (10917) example: ... socket send success
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I (10927) example: ... set socket receiving timeout success
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HTTP/1.0 200 OK
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Age: 317271
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Cache-Control: max-age=604800
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Content-Type: text/html; charset=UTF-8
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Date: Mon, 06 Sep 2021 08:09:49 GMT
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Etag: "3147526947+ident"
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Expires: Mon, 13 Sep 2021 08:09:49 GMT
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Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT
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Server: ECS (nyb/1D2B)
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Vary: Accept-Encoding
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X-Cache: HIT
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Content-Length: 1256
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Connection: close
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<!doctype html>
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<html>
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<head>
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<title>Example Domain</title>
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<meta charset="utf-8" />
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<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<style type="text/css">
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body {
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background-color: #f0f0f2;
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margin: 0;
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padding: 0;
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font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
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}
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div {
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width: 600px;
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margin: 5em auto;
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padding: 2em;
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background-color: #fdfdff;
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border-radius: 0.5em;
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box-shadow: 2px 3px 7px 2px rgba(0,0,0,0.02);
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}
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a:link, a:visited {
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color: #38488f;
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text-decoration: none;
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}
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@media (max-width: 700px) {
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div {
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margin: 0 auto;
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width: auto;
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}
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}
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</style>
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</head>
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<body>
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<div>
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<h1>Example Domain</h1>
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<p>This domain is for use in illustrative examples in documents. You may use this
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domain in literature without prior coordination or asking for permission.</p>
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<p><a href="https://www.iana.org/domains/example">More information...</a></p>
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</div>
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</body>
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</html>
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I (11467) example: ... done reading from socket. Last read return=0 errno=128.
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I (11477) example: 10...
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I (12477) example: 9...
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I (13477) example: 8...
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```
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